Thesaurus.com
Dictionary.com
Definitions

insider

[in-sahy-der] / ˌɪnˈsaɪ dər /


NOUN
cognoscente
Synonyms
Antonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But Polymarket has also taken steps to curb insider trading in order to comply with law enforcement and build trust with its customers.

From MarketWatch • Jun. 10, 2026

But, as religious freedom activists point out, once the purge starts, the circle of who is considered an insider tends to shrink.

From Salon • Jun. 10, 2026

Kalshi’s response seems to be not only rolling out internal features to stop insider trading, but also going public with its efforts and using them as marketing.

From MarketWatch • Jun. 10, 2026

People looking to place certain bets on prediction market operator Kalshi will soon have to reveal where they work in an attempt to stop insider trading, the firm has said.

From BBC • Jun. 9, 2026

Nor did his insider knowledge of interest rates ever tempt him to take personal advantage: “But you remember the saying with regard to Caesar’s Wife,” he wrote to Henry Lee.

From "Founding Brothers: The Revolutionary Generation" by Joseph J. Ellis




Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "insider" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com